Home / 690,769,918.80-1,036,041,382.52-248,020,944.48

Finding the Fourth Proportional to 690,769,918.80, 1,036,041,382.52 and 248,020,944.48

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Solution

The fourth proportional to 690,769,918.80, 1,036,041,382.52 and 248,020,944.48 is: 371,990,666.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,769,918.80 : 1,036,041,382.52 = 248,020,944.48 : x
  2. Step 2: Convert to fraction form
    690,769,918.80/1,036,041,382.52 = 248,020,944.48/x
  3. Step 3: Cross multiply
    690,769,918.80x = 1,036,041,382.52 × 248,020,944.48
  4. Step 4: Simplify right side
    690,769,918.80x = 256,959,962,212,975,360
  5. Step 5: Solve for x
    x = 256,959,962,212,975,360/690,769,918.80
  6. Step 6: Final answer
    x = 371,990,666.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.